Sectional conduit



.Patented Aug. 23, 1927.

-` Utili-TE DAVID D. TRACY,y OF JACKSON, MICHIGAN.

snorroivnr.k CONDUIT.

Application filed November sectional conduits.

The main objectl of this invention is to provide an improved joint-forsectional conduits which is well adapted for conduits of large .sizesuch as water mains, sewers and the like which facilitates the laying ofthe conduit and provides a very secure joint.

Objects pertaining to details and economies of my invention willdefinitely appear from the detailed description to follow. The inventionis clearly detined and pointed out in the claims.

A structure embodying the features of my invent-ion is clearlyillustrated in the accompanying drawing forming a part of thisapplication, in which: l

Fig. l is a. fragmentary side elevation of a conduit embodying .thefeatures of my in# vention.

Fig. 2 is a fragmentary side elevation of one of the conduit sections.

Fig. 3 is an end view looking from the left at Fig. 2.

VFig. 4 is an end view looking from the right at Fig. 2.

Fig. 5 is a fragmentary vertical longitudinal section.

F ig. 6 is an enlarged detail section on a line corresponding to line6*-6 of llig. 5.

in the accompanyingl drawing l have not attempted to maintain therelative proportion of the parts, that is, the thickness of the walls,diameter of the coupling rods and the like.

The conduit sections l, preferably formed of concrete, are provided witha {iatend face 2 at one end and a channeled joint face 3 at the otherend, there being an external joint channel t and an internal jointchan-V nel 5. rlhese channels communicate at their ends as at 6. The,sections are laid end to end in abutting relation and these jointchannels are filled with cement, asphalt` or other suitable jointsealing material.

Each section is provided with coupling rods 7, the rods being embeddedin the body of the section and terminating at one end in upwardly facinghooks 8 and at the other end in loop eyes 9. The hooks 8 project intothe channels with their ends flush with the face of the section. rllheeyes 9 projectfrom the end face 2 of the channel in a hori- Zontaldirection to be engaged with the hools as shown in Figs. 5 and 6, theeyes being a relatively close fit and resting on the Serial N0. 69,887.

shanlrs of the hooks when the sections are in alinedfposition, thussecuring the parts together in alined position. When the chanare vfilledthe engaging parts are embedded.

By thus arranging the VVcoupling members theyrmaybe easily-engaged inthe laying of the conduit and serve to guide and support the parts inalinement during the laying of the conduit and while the earth is beingproperly filled in around the sections. Of coursej it is not intendedthat the entire supporting strain of the section shall be borne by thecoupling members. They are, however, effectivein alining the parts andpreventing them pulling apart both in laying and thereafter. l

My improved conduit is simple andV economical to manufacture andparticularly well adapted for use in conduits of large size.

.Ha-ving thus described my invention What I claim as new and desire tosecure by Letters Patent is: i

l. A sectional conduit comprising tubular sections each having a flatface at one end and a channeled face at the other end there the ends ofthe hooks abutting the flat face of the abutting section.

2. A sectional conduit comprising tubular sections, each section havinga flat face at one end and an external top joint channel and an internalbottom joint channel at the other end7 coupling hooks projecting intosaid joint channels with theirbills disposed vertically and flush withthe end of a section, and eyes projecting from the fiat face end of thesection engaging with the bills of a coacting section', the eyes havinga relatively close sliding engagement with the bills and engaging theShanks of the hooks when the sections are alined.

3. A conduit section having a flat face at one end and internal andexternal top and bottom joint channelsV at the other end and tie rodsembedded in said section and having and horizontally disposed eye loopsat their W w Y npnf'ardly facing hoolc projecting into the other endsprojecting from the flat aceof cliani'iels VWitl'i their ends tlusl'i'with'then end" theV s'ectiioif of the section, and horizontallydisposed 5. A conduit section having a flat face at eyes projecting fromits flat Jface end adaptyone end and an external top joint channeldto'be engaged with the hooks omi abit -andfan internal bottom jointchannel at the il. A con-duit section having a flat face at said jointchannels With their bills disposed one end and a channeled face at theother vertically and flush With the end of a secvend thereheinganexteif'nal top .iointrchan-- tionq andeyesprojecting frointhellatendrofsaid channels communicating' at their ends, bills yof a coactingsection. y Y and tie rodseinbedded insaid sections and n In VWitnessywhereof l have hereunto set my having vertically disposed hooksprojecting hand. i intoY the joint Vchannels With theirends iish withthe channeled end face of the section,

DAVID D. TRACY.

